A long, narrow horizontal slit lies above a plane mirror,
Chapter , Problem 79(choose chapter or problem)
A long, narrow horizontal slit lies above a plane mirror, which is in the horizontal plane. The interference pattern produced by the slit and its image is viewed on a screen from the slit. The wavelength of the light is (a) Find the distance from the mirror to the first maximum. (b) How many dark bands per centimeter are seen on the screen?
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